HUE Lights

/*
Fade RGB LED (PWM) HUE Project
Sidekick Basic Kit for TI LaunchPad

// Connect Anode pin to VCC
// Connect Red to pin 19 which should be PWM capable
// Connect Green to pin with PWM
// Connect Blue to pin with PWM
// Connect tilt switch to pin 12
 */

// #define to rename our pins from numbers to readable variables
#define RED 19 // pin 19 is always PWM capable according to LaunchPad standard
#define GREEN 17 // pin 17
#define BLUE 11 // pin 11
#define TILT 12 // TILT SWITCH at pin 12
#define delayTime 10 // delay between color changes, 10ms by default

// Global Variables
int redVal;
int greenVal;
int blueVal;
int tiltVal;

/* Setting LED pins as OUTPUT and HIGH */
void setup() {
  
pinMode(RED, OUTPUT);
pinMode(GREEN, OUTPUT);
pinMode(BLUE, OUTPUT);
pinMode(TILT, INPUT);
digitalWrite(TILT, HIGH);

// Test Red
digitalWrite(RED, LOW);
digitalWrite(GREEN, HIGH);
digitalWrite(BLUE, HIGH);
delay(500);
// Test Green
digitalWrite(RED, HIGH);
digitalWrite(GREEN, LOW);
digitalWrite(BLUE, HIGH);
delay(500);
// Test Blue
digitalWrite(RED, HIGH);
digitalWrite(GREEN, HIGH);
digitalWrite(BLUE, LOW);
delay(500);
}

void loop() {

  tiltVal = digitalRead(TILT); // reads the state of the tilt switch
  // if tilted, the light will turn off
  // if tilted in the other direction, the LED will continue to fade
  int PWM_RESOLUTION = 255; // holds the resolution.
  
  /* Start with full red */
  int redVal = 0; // zero voltage will give us full color
  int greenVal = PWM_RESOLUTION; // max voltage will give us no color
  int blueVal = PWM_RESOLUTION; // max voltage will give us no color
  
  analogWrite( RED, redVal );
  analogWrite( GREEN, greenVal );
  analogWrite( BLUE, blueVal );

    /*Fade from red to orange */
  for( int i = 0 ; i < 85 ; i += 1 ){
  greenVal -= 1;
  redVal += 1;
  analogWrite( RED, redVal ); // set the new red value
  analogWrite( GREEN, greenVal ); // set the new green value
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Orange to Yellow");
  /* Fade from orange to yellow */
  for( int i = 0 ; i < 85 ; i += 1 ){
  greenVal -= 1;
  analogWrite( GREEN, greenVal ); // set the new green value
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Yellow to green");
  /* Fade from yellow to green*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  greenVal -= 1;
  redVal += 2;
  analogWrite( GREEN, greenVal ); // set the new green value
  analogWrite( RED, redVal);
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Green to aqua");
  /* Fade from green to aqua*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  greenVal += 1;
  blueVal -= 1;
  analogWrite( GREEN, greenVal ); // set the new green value
  analogWrite( BLUE, blueVal);
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Green to aqua"); 
  /* Fade from aqua to blue*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  greenVal += 2;
  blueVal -= 2;
  analogWrite( GREEN, greenVal ); // set the new green value
  analogWrite( BLUE, blueVal);
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Blue to purple");
  /* Fade from blue to purple*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  redVal -= 1;
  blueVal += 1;
  analogWrite( RED, redVal ); // set the new green value
  analogWrite( BLUE, blueVal);
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Purple to pink");
  /* Fade from purple to pink*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  blueVal += 1;
  redVal -= 1;
  analogWrite( BLUE, blueVal ); // set the new green value
  analogWrite( RED, redVal);
  delay( delayTime ); // wait for how long delay time is
  }
  
  //  Serial.println("Pink to red");
  /* Fade from pink to red*/
  for( int i = 0 ; i < 85 ; i += 1 ){
  blueVal += 1;
  redVal -= 1;
  analogWrite( BLUE, blueVal ); // set the new green value
  analogWrite( RED, redVal);
  delay( delayTime ); // wait for how long delay time is
  }

}